1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/join/empty-instance-empty-string.js b/js/src/tests/test262/built-ins/TypedArray/prototype/join/empty-instance-empty-string.js
new file mode 100644
index 0000000000..54e40f5194
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/join/empty-instance-empty-string.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.join
+description: Return the empty String if length is 0
+info: |
+  22.2.3.15 %TypedArray%.prototype.join ( separator )
+
+  %TypedArray%.prototype.join is a distinct function that implements the same
+  algorithm as Array.prototype.join as defined in 22.1.3.13 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length".
+
+  22.1.3.13 Array.prototype.join (separator)
+
+  ...
+  4. Let sep be ? ToString(separator).
+  5. If len is zero, return the empty String.
+  ...
+includes: [testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA();
+
+  assert.sameValue(sample.join(), "");
+  assert.sameValue(sample.join("test262"), "");
+});
+
+reportCompare(0, 0);